Year % (national estimate) 2001 23.267 2006 15.853 2007 17.903 2008 21.826 2009 21.322 2010 17.486 2011 16.761 2012 13.996 2013 14.764 2014 13.344 2015 15.72 2016 18.274 2017 22.585 2018 25.948 2019 26.885 2020 25.97 2021 27.107 2022 25.914 2023 24.556